and similar ones for INFO, WARN and ERROR levels. This works ok, but seems like a lot of extra work, because all those appenders differ only on threshold value (debug or warn etc) and file name (debug.log or warn.log etc)

Is there any better way to achieve my goal? Maybe something like declaring "base appenders" first.

(on a separate note - if that's not possible in log4net but possible in NLog, I'd be grateful to know as well)